Home / 3,215.80-4,822.34-1,829.79

Finding the Fourth Proportional to 3,215.80, 4,822.34 and 1,829.79

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Solution

The fourth proportional to 3,215.80, 4,822.34 and 1,829.79 is: 2,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.80 : 4,822.34 = 1,829.79 : x
  2. Step 2: Convert to fraction form
    3,215.80/4,822.34 = 1,829.79/x
  3. Step 3: Cross multiply
    3,215.80x = 4,822.34 × 1,829.79
  4. Step 4: Simplify right side
    3,215.80x = 8,823,860.36
  5. Step 5: Solve for x
    x = 8,823,860.36/3,215.80
  6. Step 6: Final answer
    x = 2,743.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.